Spike-extractor



No. 6l9,424. Patented Feb. I4, I899.

L. .LUCKHOFF.

SPIKE EXT-RACTOR.

(Appfication filed Nov. 22, 1898.)

(No Model.)

I I awue/wbm l [0696's Iaofio mus PETERS 0Q, Fnomumm, WASNXNGTON a c UNITED STATES PATENT OFFICE.

LOUIS LUCKHOFF, OF KENTON, OHIO.

SPIKE-EXTRACTO R.

SPECIFICATION formingpart of Letters Patent No. 619,424, dated February 14, 1899.

Application filed November 22, 1898. Serial No. 697,132. (No model.)

To aZZ whom it may concern:

Be it known that I, LOUIS LUOKHOFF, a citizen of the United States, residing at Kenton, in the county of Hardin, and State of Ohio, have invented certain new and useful Improvements in Spike-Extractors; and I do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

The invention has relation to spike-extractors.

The object of the invention is to provide a simple, strong, and powerful device of this character by means of which spikes may be readily withdrawn from the ties and by means of which the operating-lever may be quickly and successfully brought into engagement with the claw-bar to get fresh engagements therewith in the act of drawing the spike.

To this end the invention consists in certain features of construction and combination of parts, which will be hereinafter fully described, and particularly pointed out in the claim hereto appended.

In the drawings, Figure 1 is a side elevation of my device, showing it in use. Fig. 2 is a front elevation. Fig. 3 is a top plan view of one of the clips. Fig. 4 is a side view of one of the bearing-plates.

In the drawings, 1 denotes the frame of the spike-extractor, which may be of bail or inverted-U form and the lower ends of which may be slightly curved to conform with the tread of the rail upon which it is adapted to rest when the extractor is in the act of drawing a spike.

2 denotes clips bolted to the sides of the frame and provided with registering bearingeyes 3 to receive the claw-bar 4, having a claw-head 5 and a rack portion 6.

7 denotes the operating-lever, having a toothed head 8 to engage the rack-teeth of the claw and having trunnions 9, that fit in oblique bearing-recesses 10, formed on the inner faces of the bearing-plates 11, which are bolted to the inner sides of the frame.

In operation the frame is placed upon the rail and the claw-bar lowered and its clawhead engaged with the head of the spike to be withdrawn. In this position the operating-lever is elevated and its trunnions are at the lower ends of the recesses in the bearingplates. The free end of the lever is now depressed, which action will raise the claw-bar a distance of the number of teeth engaged by the toothed head of the lever. The lever is now drawn rearward to slide its trunnions obliquely upward in their bearing-recesses.

This frees the toothed head from the rackteeth of the claw-bar and allows the free end of the lever to be raised upwardly and the head to get a fresh engagement with the rackteeth, so that upon further depression of the lever the claw-bar will be further lifted This operation continues until the spike is entirely withdrawn from the tie.

Having thus described the invention, what I claim as new, and desire to secure by Letters Patent, is-

In a spike-extractor, the combination with the supporting-frame having parallel sides, clips bolted to said sides and having alined eyes, bearing-plates secured to the inner faces of said sides and provided with obliquely-extending bearing-recesses, a claw-bar connected to said frame by the said clips and having rack-teeth upon one of its sides, and an operating-lever having a toothed head to engage said rack-teeth, and provided with trunnions that are seated in the recesses of the bearingplates, substantially as set forth.

In testimony whereof I have hereunto set my hand in presence of two subscribing witnesses.

LOUIS LUCKHOFF.

Witnesses:

WILLIAM WARD, RANDOLPH S. MARTY. 

